[Gambas-user] gb.chart pre-reqs?

[KKing]

I'm using Gambas from the Debian 11 Bullseye repository which is at 
version 3.15.2

The "gambas3-gb-chart" package is present and installed, but if I start 
a new gambas project and go to Project properties gb.chart is greyed out?

I've tried standard "Graphical Application", GTK and QT it's always 
greyed out?

Is some other package/component need to be installed or selected before 
gb.chart becomes available?

K.